Grade 6 - Numbers, Operations and Relationships
Standard 6.NOR.1.1.1 - Practice estimating subtraction equations by first rounding the numbers then finding the difference.
Included Skills: Estimation
Mental calculations involving: • Addition and subtraction of: - units - multiples of 10 - multiples of 100 - multiples of 1000 • Multiplication of whole numbers to at least 12 x 12 • Multiplication facts of: - units and tens by multiples of 10 - units and tens by multiples of 100 - units and tens by multiples of 1000 - units and tens by multiples of 10000